21100233302012 has 12 divisors (see below), whose sum is σ = 39097491118560. Its totient is φ = 9929521553856.

The previous prime is 21100233301967. The next prime is 21100233302039. The reversal of 21100233302012 is 21020333200112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155148774212 + ... + 155148774347.

It is an arithmetic number, because the mean of its divisors is an integer number (3258124259880).

Almost surely, 2^{21100233302012} is an apocalyptic number.

It is an amenable number.

21100233302012 is a deficient number, since it is larger than the sum of its proper divisors (17997257816548).

21100233302012 is a wasteful number, since it uses less digits than its factorization.

21100233302012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310297548580 (or 310297548578 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21100233302012 its reverse (21020333200112), we get a palindrome (42120566502124).

The spelling of 21100233302012 in words is "twenty-one trillion, one hundred billion, two hundred thirty-three million, three hundred two thousand, twelve".